| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef PPAPI_PROXY_PPB_BUFFER_PROXY_H_ |
| #define PPAPI_PROXY_PPB_BUFFER_PROXY_H_ |
| |
| #include "base/memory/shared_memory.h" |
| #include "ppapi/c/pp_instance.h" |
| #include "ppapi/proxy/interface_proxy.h" |
| #include "ppapi/shared_impl/resource.h" |
| #include "ppapi/thunk/ppb_buffer_api.h" |
| |
| namespace ppapi { |
| |
| class HostResource; |
| |
| namespace proxy { |
| |
| class SerializedHandle; |
| |
| class Buffer : public thunk::PPB_Buffer_API, public Resource { |
| public: |
| Buffer(const HostResource& resource, |
| const base::SharedMemoryHandle& shm_handle, |
| uint32_t size); |
| virtual ~Buffer(); |
| |
| // Resource overrides. |
| virtual thunk::PPB_Buffer_API* AsPPB_Buffer_API() OVERRIDE; |
| |
| // PPB_Buffer_API implementation. |
| virtual PP_Bool Describe(uint32_t* size_in_bytes) OVERRIDE; |
| virtual PP_Bool IsMapped() OVERRIDE; |
| virtual void* Map() OVERRIDE; |
| virtual void Unmap() OVERRIDE; |
| |
| // Trusted |
| virtual int32_t GetSharedMemory(int* handle) OVERRIDE; |
| |
| private: |
| base::SharedMemory shm_; |
| uint32_t size_; |
| int map_count_; |
| |
| DISALLOW_COPY_AND_ASSIGN(Buffer); |
| }; |
| |
| class PPB_Buffer_Proxy : public InterfaceProxy { |
| public: |
| explicit PPB_Buffer_Proxy(Dispatcher* dispatcher); |
| virtual ~PPB_Buffer_Proxy(); |
| |
| static PP_Resource CreateProxyResource(PP_Instance instance, |
| uint32_t size); |
| static PP_Resource AddProxyResource(const HostResource& resource, |
| base::SharedMemoryHandle shm_handle, |
| uint32_t size); |
| |
| // InterfaceProxy implementation. |
| virtual bool OnMessageReceived(const IPC::Message& msg); |
| |
| static const ApiID kApiID = API_ID_PPB_BUFFER; |
| |
| private: |
| // Message handlers. |
| void OnMsgCreate(PP_Instance instance, |
| uint32_t size, |
| HostResource* result_resource, |
| ppapi::proxy::SerializedHandle* result_shm_handle); |
| }; |
| |
| } // namespace proxy |
| } // namespace ppapi |
| |
| #endif // PPAPI_PROXY_PPB_BUFFER_PROXY_H_ |